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(11)

EP 3 424 063 A1

(12)

(43) Date of publication: 09.01.2019 Bulletin 2019/02 (21) Application number: 17710817.2 (22) Date of filing: 27.02.2017

(51) International Patent Classification (IPC):  H01G 11/60(2013.01) H01G 11/62(2013.01) H01G 11/06(2013.01) H01G 11/64(2013.01) (86) International application number: PCT/US2017/019669 (87) International publication number: WO 2017/151497 (08.09.2017 Gazette 2017/36)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 01.03.2016 US 201662302059 P 24.02.2017 US 201715442080 (71) Applicant: Maxwell Technologies, Inc. San Diego, CA 92123 (US)	(72) Inventors: RAMAN, Santhanam San Diego CA 92123 (US) XI, Xiaomei San Diego CA 92123 (US) YE, Xiang-Rong San Diego CA 92123 (US) HONG, Jian San Diego CA 92123 (US) (74) Representative: Zacco Sweden AB  P.O. Box 5581 114 85 Stockholm 114 85 Stockholm (SE)